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org.scopemvc.model.beans
Class Accessor  

java.lang.Object
  org.scopemvc.model.beans.Accessor

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final class Accessor

extends java.lang.Object

Describes a single JavaBeans accessor. Since this includes indexed properties, it might represent access into an ordered Collection, consuming two Selectors: a String one to describes the Collection and an int one to fetch the member of the List. eg "customers.0" can be traversed in one step if the parent model JavaBean has a getCustomer(int) method. Handles java.util.List and Object[] for int indexed properties.

Version:

$Revision: 1.6 $ $Date: 2002/01/26 09:46:20 $

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Field Summary
(package private)  java.beans.PropertyDescriptor	descriptor
(package private)  boolean	isGetterIndexed
private static org.apache.commons.logging.Log	LOG
(package private)  java.lang.Object	model
private  java.lang.Object[]	params
(package private)  org.scopemvc.core.Selector	selector

 

Constructor Summary
(package private)	Accessor(java.lang.Object inModel, org.scopemvc.core.Selector inSelector)           Make sure to call findProperty before traverseProperty.

 

Method Summary
(package private)  void	findProperty()           Find the next property and populate the descriptor.
(package private)  boolean	isAtTerminal()           Next traversal is over the terminal property? Depends on prior call to findProperty().
java.lang.String	toString()           Convert this Object to a human-readable String.
(package private)  void	traverseProperty()           Burrows down through the next accessor to the next one.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

LOG

private static final org.apache.commons.logging.Log LOG

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model

java.lang.Object model

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selector

org.scopemvc.core.Selector selector

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descriptor

java.beans.PropertyDescriptor descriptor

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isGetterIndexed

boolean isGetterIndexed

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params

private java.lang.Object[] params

Constructor Detail

Accessor

Accessor(java.lang.Object inModel,
         org.scopemvc.core.Selector inSelector)

Make sure to call findProperty before traverseProperty.

Method Detail

isAtTerminal

boolean isAtTerminal()

Next traversal is over the terminal property? Depends on prior call to findProperty().

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findProperty

void findProperty()
            throws java.lang.Exception

Find the next property and populate the descriptor. descriptor == null if next selector is IntIndexed (ie access property through java.util.List or Object[]), else either a PropertyDescriptor or an IndexedPropertyDescriptor.

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traverseProperty

void traverseProperty()
                throws java.lang.Exception

Burrows down through the next accessor to the next one. If the property we return is an int-indexed property (ie accessed property from java.util.List or Object[]) then the PropertyDescriptor will be null.

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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